Cassiopeia always knew she was different from the rest of her 'family' - apart from the fact that she was mute. She wasn't even sure now whether she could call her parents and brother, family. She'd been ignored ever since Harry had been born - a few minutes after her. Cassiopeia had been dumped back into her cot by her godfather, Lupin, who preferred to fawn over Sirius' godson, Harry. He didn't need more attention with Lily and James already cooing over their son, completely forgetting their other child. If one were to look at the scene, they would see a baby girl in her cot alone staring at a boy in his mother's arms with the father and friends smiling and laughing around the pair. One wouldn't even think about the girl being part of that group or being related to them.
That girl, grew up with a house-elf raising her, Lily being too busy with Harry to raise Cassiopeia, her daughter. James, however, took pleasure in punishing Cassiopeia for silly things like her not clearing the table after meals even though she was only three years old. James' favourite punishment was to lock Cassiopeia in a cupboard which he knew had a Boggart inside. However, James wouldn't say no to beating up his favourite punchbag, Cassiopeia. Lily never did anything to hurt her daughter but just stood and watched Cassiopeia being punished. In the cupboard, Cassiopeia faced her worst fear which was Lily telling her she never loved her and throwing her out.
Cassiopeia's worst fear came true on the night before her 6th birthday - not that Cassiopeia actually classified it as her birthday. It was more Harry's birthday than hers even though they were twins. Anyway, the night before Harry's 6th birthday, Cassiopeia was just about to go to bed when she heard James, Lily and ALBUS DUMBLEDORE talking about her. She was so excited about the great Albus Dumbledore talking about her that she crept downstairs and leaned against the kitchen door. She was kind of expecting Lily and James to be telling Albus Dumbledore about her control over magic but she heard quite the opposite.
"What should we do with the brat?"
"Send the girl away to my sister, Petunia. She'll stamp out the brat's rubbish."
James agreed to the plan and said, "I'll go fetch the brat."
At that, Cassiopeia felt tears forming at Lily basically throwing her away like yesterday's rubbish. The kitchen door was thrown open and James leered at her.
"Well, well, well. Look who I found snooping around us!"
Dragging her to the kitchen, he told the other adults about her eavesdropping. Cassiopeia shivered at the thought of her punishment but luckily for her, Dumbledore seemed to be in a hurry or desperate to get rid of her and grabbed her arm. They apparated to a street of such uniformity and sameness that Cassiopeia felt bile rising up her throat. Dumbledore pushed her roughly towards number four and rang the doorbell impatiently.
The door was opened by a fat, beefy man without a neck. He was so surprised by Dumbledore's dress attire, he let him and Cassiopeia through, staring after them in shock. The house was so clean, it looked scrubbed of life and happiness. Dumbledore strode to the living where he and the girl were greeted with the sight of a lump of fat - Dudley - watching TV with his piggish eyes. When he saw Dumbledore, he squeaked in fright and waddled to the kitchen where he hid behind his horse-faced mother. Dumbledore smiled serenely and motioned for the Dursleys to sit down. The fat lump, horse-faced woman and beefy man sat together, squashed on a sofa, watching Dumbledore warily, not noting the small girl next to him on the sofa.
"This is your niece. Keep her." announced Dumbledore and with that, he swept off and disappeared, leaving Cassiopeia with the Dursleys. When he recovered form his scare, Vernon grabbed Cassiopeia and snarled.
"I don't care about you, freak. I am just tolerating you because we don't want their kind coming here again."
He grabbed Cassiopeia's hair and dragged her to her new living space for the next few years of her miserable life. He locked the cupboard under the stairs and thumped off. Cassiopeia crumpled onto the ground and cried.
The life of Cassiopeia Potter at the Dursley household had just begun...